Stereotypic Movement Disorder

What is Stereotypic Movement Disorder?

Stereotypic Movement Disorder is classified under Motor Disorders in the DSM-V. Individuals who have such disorder tend to have repetitive, purposeless movement. For example, an individual may repetitively hand wave or bang their head. However, a diagnosis is only given if such behaviors affect the individual daily functioning. It is important to note that such disorder tends to develop in childhood and that it is more common among boys than it is among girls.

What are the symptoms of Stereotypic Movement Disorder?

An individual appears to show the following stereotypic movements (repetitive and purposeless movement):

Nail biting

Thumb sucking

Face slapping

Head nodding

Hand shaking

Hand waving

Self-hitting

Skin picking

Flicking fingers in front of the individual face

It is important to note that the symptoms will vary in severity as follows:

What causes Stereotypic Movement Disorder?

Although experts have not determined the exact known cause, social isolation, environmental stress, and genetics may play a role in the development. In addition, boredom, stress, excitement, and exhaustion may also be factors that increase the likelihood of developing such disorder in children. Certain physical conditions, head injuries, or drug use have also shown to play a role in the development of Stereotypic Movement Disorder.